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Old 07-09-2014, 12:43 AM   #88
Samson2029
 
Drives: 328xi, ML400, ZL1 man. 2013
Join Date: Aug 2012
Location: Quebec
Posts: 153
I agree about a likely performance gain. Seems to pull stronger and more easily. The old charger may have contributed to some drivetrain hp loss. My pulley had a lot of slack and the two spindles or rotors had many grooves.
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